Picker-stick check.



T. BOUCHER.

PICKER STICK CHECK. APPLICATION IILBD Amma, 190e.

904,753. Patented Nov. 24, 1908,

n! Y ".1 w unl .v`"lllllllllllllllllllllllll. 5%* Y lll THEOPHILE BOUCHER, OF MANCHESTER, NEW HAMBSHIRE.

PICKER-STICK CHECK.

Specification of Letters Patent.

Patented Nov. 24, 1908. i

Application filed April 29, 1908. Serial No. 429.895.

To all whom t may concern:

Be it known that I, THEOPHILE BOUCHER, citizen of the United States, residing at Manchester, in the county of Hillsboro and State of New Hampshire, have invented new and useful Improvements in Picker- Stick Checks, of which the following is a specification.

My invention pertains to picker stick checks and more particularly to picker stick checks or buffers of the looped-strap type; and it has for its object to improve such type by the provision of means for preventing` the picker stick when striking the shuttle from breaking the strap, and for forcing the picker stick back into proper position after the same strikes the shuttle.

The invention will be fully understood from the following description and claims when the same are read in connection with the drawings, accompanying and forming part of this specification, in which:

Figure l is a side elevation illustrating portions of a lay and a picker stick and my novel check or buffer as properly arranged relative thereto; the picker stick being shown in the position it occupies when it strikes the shuttle. Fig. 2 is a horizontal section taken through the body of the check in a plane above the looped-strap and my improvements, as indicated by the line 2 2 of Fig. l, looking in the direction of the arrows. Fig. 3 is a detail view showing the arrangement of the torsion spring of the check, relative to the body and the bellcrank; the said view being taken in the plane of a line extending between the nu merals 3 3 of Fig. 2, looking in the direc tion indicated by arrow.

Similar letters designate corresponding parts in' all of the Views of the drawings, referring to which:

A is a portion of the lay of a loom, and B is a picker stick. These parts are preferably of the ordinary, wellknown construction.

C is the body of my novel check which is preferably a casting ixed to and arranged as shown on the lay. The said body is provided with a lateral stud D, and to it are connected at E the lapped ends of the looped strap F which receives the picker stick after the manner shown in Fig. 2. The body also carries the usual strip C3, of Wood.

In the present and preferred embodiment of my invention I employ an impact-receiving strap G arranged in and connected at one end to the looped strap F, as indicated by I-I, a loop I, preferably of leather, connected to the opposite end of the strap Gr and loosely receiving and movable on one side of the looped strap F, a bell-crank J mounted to swing vertically on the stud D, a strap K extending between and connecting the loop I and the depending arm of the bell-crank J, and a torsion spring M coiled about the stud D and terminating at one end in an arm connected to the upper arm of the bell crank and at its opposite end in an arm which bears against a fixed abutment, such, for instance, as the nut on the bolt employed to connect the lapped ends of the looped strap F to the body C.

By virtue of the construction described in the foregoing it will be manifest that on its inward stroke the picker stick will strike against the impact-receiving strap G and will move the same, the loop I and the bell crank J, and put the spring M under tension with the result that the picker stick will be cushioned and effectually prevented from breaking the looped strap F when said stick strikes the shuttle. It will also be manifest that after the picker stick strikes the shuttle, the spring M will, in reassuming its normal state, draw the strap G backward or outward and in that way return the picker stick to its outer position ready for the next inward stroke.

It will be gathered from the foregoing that my improvements are simple and inexpensive and adapted to be readily applied, and that said improvements are calculated to materially prolong the usefulness of the comparatively expensive looped check straps.

Having described my invention, what I claim is:

1. In a loom and in combination with a lay and a picker stick, a check or buffer for the inward throw of the picker stick comprising a suitably-supported looped strap, an impact-receiving strap arranged in the looped strap and connected at one end thereto, and a spring connected with the opposite end of the impact-receiving strap for yieldingly resisting inward movement of said strap and for subsequently moving the same outward.

2. In a loom and in combination with a lay and a picker stick, a check or buer for the inward throw of the picker stick comprising a .suitably-supported looped pui strap, an impact-receiving strap arranged in the looped strap and connected at one end thereto, a suitably supported bell-crank, a connection between the opposite end of the impact-receving strap and one arm of the bell-crank, and a suitably-supported torsion spring having a fixed end and also having an arm connected with the other arm of the bell-crank.

3. In a loom and in combination with a lay and a picker-stick, a check or buffer comprising a suitably-supported looped strap, impact-receiving means supported in the looped strap and arranged to be moved by the picker-stick in one direction, a suitably-supported bell-crank, a connection between the impact-receiving means and one arm of the bell-cranl, and a suitably-supported torsion spring having a fixed end and also having an end connected with the other yarm of the bell-crank.

il. In a loom and in combination with a lay and a picker-stick, a check or buffer for the picker-stick comprising a'body liXed to the lay and having a lateral stud, a looped strap connected with and supported by the body, an impact-receiving strap arranged in and connected at one end to the looped strap, a loop loosely arranged and movable on one side of the looped strap and connected to the other end of the impact-receiving strap, a bell-crank mounted on thestud of the body, a connection between the loop and one arm of said bell-crank, and a torsion spring coiled about said stud and fixed at one end and having an arm at its opposite end connected to the other arm of the bellcrank.

In testimony whereof I have hereunto set my hand in presence of two subscribing witmesses.

PAUL ST. LOUIS, J. A. BoIvIN. 

